237 Coelestina
Main-belt asteroid
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237 Coelestina is a stony main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on 27 June 1884 in Vienna and was named after Coelestine, wife of astronomer Theodor von Oppolzer. This minor planet is orbiting the Sun at a distance of 2.76 AU with a low eccentricity of 0.072 and an orbital period of 4.60 yr. The orbital plane is inclined at an angle of 9.74° to the plane of the ecliptic.[1]
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Discoverydate27 June 1884
(237) Coelestina
| |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 27 June 1884 |
| Designations | |
| (237) Coelestina | |
| Pronunciation | /ËsÉlÉËstiËnÉ, -ËstaɪnÉ/ SEL-É-STEE-nÉ, -â STY-nÉ |
| A884 MA | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.81 yr (48143 d) |
| Aphelion | 2.96365 AU (443.356 Gm) |
| Perihelion | 2.56551 AU (383.795 Gm) |
| 2.76458 AU (413.575 Gm) | |
| Eccentricity | 0.072007 |
| 4.597 yr (1,679.0 d) | |
Average orbital speed | 17.92 km/s |
| 253.418° | |
| 0° 12m 51.905s / day | |
| Inclination | 9.74247° |
| 84.3141° | |
| 199.113° | |
| Physical characteristics | |
| Dimensions | 41.08±1.4 km |
| 29.215 h (1.2173 d) | |
| 0.2108±0.016 | |
| Temperature | unknown |
| S | |
| 9.24 | |
Photometric data collected during March 2021 was used the generate a lightcurve for 237 Coelestina. This showed a rotation period of 29.062±0.009 h with a brightness variation of 0.24 magnitude.[2]
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